Anti-skid supporting device for reinforcement cage during operation of cage rolling machine

The utility model discloses an anti-skidding supporting device for a reinforcement cage during operation of a cage rolling machine, which comprises a positioning ring, a plurality of clamping plates are arranged on the outer side of the positioning ring along the circumferential direction of the positioning ring, a telescopic rod is arranged in the middle of one surface of each clamping plate facing the positioning ring, a driving box is arranged on the inner side of the positioning ring, and the driving box is rotatably connected with a driving screw rod. One end of the driving screw rod is in threaded connection with the telescopic rod, the other end of the driving screw rod penetrates through the driving box and is provided with a transmission bevel gear, the front end face of the driving box is rotationally connected with a driving bevel gear, the driving bevel gear is meshed with the multiple transmission bevel gears, and the driving bevel gear can drive the multiple telescopic assemblies to stretch out